Altimeter
I just received my new Jolly Logic altimeter to put inside of my sailplane. Trying to keep my flights over 400 ft. The nice thing about this is it can be put in any plane, glider, or even a rocket.No wires. I $50.00 and got fast shipping.So am trying to do my best while they figure out high can we fly .I'm here in the desert of S/W Az.